Now this sounds a bit suspicious:
http://www.mccannpjfiles.co.uk/PJ/JOSE_PIMENTAL.htm"At about 04.00 AM they searched the streets, gardens, caravans, lorries, etc. As well as questioning lorry drivers in the parking area next to the "Luz Tur" building, they stopped a caravan with two English individuals, who said they lived in the Espiche area. The caravan was duly searched.
When carrying out the search of the resort area they also saw several local people helping to search. He remembers a woman named Silvia who worked at the resort.
He left for home at about 04.20."
Silvia Isabel Cunha Azevedo Cravinho does not get involved in the search.
Silvia Batista doesn't describe searching
Since he mentions something at 4:00 AM and going home at 4:20 AM did the sighting of Silvia happen in between?
He seems to know Silvia Batista but didn't Silvia say she was at home in Lagos at 4:00 AM?
No it was her husband Joao "That he immediately left for the OC where he arrived at about 23.00 and immediately began to search the resort and the beach area, searching in all the places where the child might be. The searches were carried out by employees from the Tapas and the restaurant who had just finished their shifts and by some local people. He continued searching until about 04.00 when he returned home with his wife."
http://www.mccannpjfiles.co.uk/PJ/JOAO_BATISTA.htmSo it is possible Silvia joined in searching before she went home.